Can be used both as a laser leveller or as a traditional spirit level. Helps you to put shelves, pictures and ceramic tiles up straight since the laser spirit level shows a clear laser line on the wall, even in daylight. Easy to use, even for one person - mount the laser spirit level to the wall and have both hands free to work with. You can attach the laser spirit level to all metal surfaces, making it easier to aim and create straight lines. http://www.ikea.com/my/en/images/products/fixa-laser-spirit-level__0161653_PE316526_S4.JPGFIXA Laser spirit levelhttp://www.ikea.com/my/en/catalog/products/00223246/002.232.46RM59